File add_debug.patch of Package failed_libredfish

Index: libredfish-1.3.7.1+git.74758f1/CMakeLists.txt
===================================================================
--- libredfish-1.3.7.1+git.74758f1.orig/CMakeLists.txt
+++ libredfish-1.3.7.1+git.74758f1/CMakeLists.txt
@@ -24,7 +24,7 @@ if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
   set(CMAKE_INSTALL_LIBDIR lib)
 endif()
 
-set(CMAKE_C_FLAGS_DEBUG "-D_DEBUG")
+set(CMAKE_C_FLAGS "-D_DEBUG")
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}")